Caption: Barometer equipment, 18th century artwork. The main drawing (left) shows the design of a barometer built by the English scientist Francis Hauksbee (1666-1713). The other drawings show the workings of the barometer and its associated equipment. This page of drawings is from the encyclopedic dictionary Lexicon technicum (1704). Written by the English author John Harris, and published in London, this was one of the first encyclopedic works in the English language.